A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6105-01-374-4794
NSN 6150-01-639-8152
NSN 6650-01-633-9147
NSN 6110-01-565-4663
NSN 5915-01-294-5903
NSN 5975-00-004-1458
NSN 6220-01-201-2668
NSN 5895-00-794-7645
NSN 6240-00-222-9135
NSN 7035-01-434-0606
NSN 5998-01-309-6887
NSN 6645-01-600-2080